1. Shinnersoseris rostrata (A. Gray) Tomb, Sida. 5: 186. 1974.
Beaked or annual skeleton-weed
Lygodesmia juncea (Pursh) Hooker var. rostrata A. Gray, Proc. Acad. Nat. Sci. Philadelphia 15: 69. 1864; L. rostrata (A. Gray) A. Gray
Leaves: blades 6–15 cm × 2–4 mm, distalmost reduced to scales. Calyculus bractlets 1–5 mm. Involucres 12–18 × 4–5 mm. Phyllaries 16–20 mm, faces glabrous. Corollas 15–16 mm. Cypselae 8–10 mm; pappi 6–8 mm. 2n = 12.
Flowering Jul–Sep. Sandy soils of stream banks, dunes, and sand hills in prairies; 300–1500 m; Alta., Man., Sask.; Colo., Iowa, Kans., Minn ., Nebr., N.Dak., Okla., S.Dak., Tex., Utah, Wyo.
Shinnersoseris rostrata grows in the Prairies and Great Plains region of North America.